An era is a period of time distinguished by a particular character. “It was the Eisenhower era, when people were more willing to serve in the military.”

Era has a couple of great things about it. First, it is used whenever you talk about dinosaurs to describe the various geologic time periods, for instance the Paleozoic Era, or the Jurassic Era. Second, it is a word beloved of crossword puzzle editors, so if you’re looking for a three-letter word for an age, look no further. Third, it sometimes confuses people who are talking about the ERA, or the Equal Rights Amendment, a vestige of the era of political feminism.

Definitions of era
  1. noun
    a period marked by distinctive character or reckoned from a fixed point or event
    synonyms: epoch
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    the era of Islam's ascendancy from the death of Mohammed until the 13th century; some Moslems still maintain that the Moslem world must always have a calif as head of the community
    Christian era
    the time period beginning with the supposed year of Christ's birth
    Age of Reason
    a movement in Europe from about 1650 until 1800 that advocated the use of reason and individualism instead of tradition and established doctrine
    Elizabethan age
    a period in British history during the reign of Elizabeth I in the 16th century; an age marked by literary achievement and domestic prosperity
    Victorian age
    a period in British history during the reign of Queen Victoria in the 19th century; her character and moral standards restored the prestige of the British monarchy but gave the era a prudish reputation
    Baroque period
    the historic period from about 1600 until 1750 when the baroque style of art, architecture, and music flourished in Europe
    Middle Ages
    the period of history between classical antiquity and the Italian Renaissance
    the period of European history at the close of the Middle Ages and the rise of the modern world; a cultural rebirth from the 14th through the middle of the 17th centuries
    Italian Renaissance
    the early period when Italy was the center of the Renaissance
    technological revolution
    the transformation from an agricultural to an industrial nation
    Reign of Terror
    the historic period (1793-94) during the French Revolution when thousands were executed
    Harlem Renaissance
    a period in the 1920s when African-American achievements in art and music and literature flourished
    New Deal
    the historic period (1933-1940) in the United States during which President Franklin Roosevelt's economic policies were implemented
    Reconstruction Period
    the period after the American Civil War when the southern states were reorganized and reintegrated into the Union; 1865-1877
    the reign of Charles II in England; 1660-1685
    Great Depression
    a period during the 1930s when there was a worldwide economic depression and mass unemployment
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    an era of existence or influence
    age, historic period
    an era of history having some distinctive feature
    modern era
    the present or recent times
    the historic period preceding the Middle Ages in Europe
    golden age
    any period (sometimes imaginary) of great peace and prosperity and happiness
    information age
    a period beginning in the last quarter of the 20th century when information became easily accessible through publications and through the manipulation of information by computers and computer networks
    Jazz Age
    the 1920s in the United States characterized in the novels of F. Scott Fitzgerald as a period of wealth, youthful exuberance, and carefree hedonism
    the period during which a monarch is sovereign
    turn of the century
    the period from about ten years before to ten years after a new century
    type of:
    period, period of time, time period
    an amount of time
  2. noun
    a major division of geological time; an era is usually divided into two or more periods
    synonyms: geological era
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    Age of Mammals
    approximately the last 63 million years
    Age of Reptiles
    from 230 million to 63 million years ago
    Paleozoic era
    from 544 million to about 230 million years ago
    type of:
    geologic time, geological time
    the time of the physical formation and development of the earth (especially prior to human history)
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